Apparatus for treating gases



May 27, 1930. M. AURIG APPARATUS FOR TREATING GASES Filed April 29, 1929 Max A g \NV E NT'OR;

Patented May 27, 1930 UNITED STATES MAX AURIG, OF MUN IOH, GERMANY APPARATUS FOR TREATING GASES Application filed April 29,1929, Serial No..358,997, and in Germany February 26, 1929.

My invention relates to improvements in apparatus for purifying, cooling, mixing and absorbing gases, steam, etc., and the type of apparatus to which my invention is particu- 5 larly directed comprises a series of spaced sinusoidal plates carried by bars or rods which, are supported by rotary discs in the apparatus casing.

The principal object of my invention is to provide improved means for retaining the plates in proper position on their supporting bars. Other objects will appear hereinafter. In the accompanying drawings, Fig. 1 is a fragmentary sectional view showingmy improved mounting for the is a similar view of a modi cation. I

The general type of device to which my invention is particularly applicable is one in which a main shaft carries a disc which ro- 2 tates in the apparatus casing. Secured to opposite faces of the disc are rings which serve as bearings for one endof cylindrical bars or rods upon which sinusoidal plates are carried and maintained in spaced relation by 2 spacers or sleeves. The ends of the rods opposite the rings are threaded to receive nuts for holding the assembly of plates together on the rods. Lock nuts are usually screwed home against the nuts, above mentioned, to

prevent loosening of the latter.

It developed in practice that, owing to the very considerable length of the rods and the large number of spaced plates carried thereby, it was impossible to uniformly tighten the plates merely by means of nuts screwed onto threads at one end of the rods. This impossibility to uniformly tighten the plates is due to the fact that the several plates and spacers are not generally. uniform nor are the cross sections of the plates and. spacers uniform at the parts where pressure from the nuts is applied. The consequence is that greater pressure is applied at some of these parts than at others and as this is true of the entire series, usually eight, of the bars ar-' annularly, there 'is a tendency to ran ed buclili'ng or distortion which causes knocking of the rotor because of its lack of proper balance.

. A possible remedy for this diificulty might lates and Fig. 2

a thread 11 which, in lieu of engaging a ring lie in threadin" the rods throughout their length and app yingnuts at intervals, but

this expedient is not practicable because as each nut would necessarily be moved from the outermost end of the rod to a point at or near its inner end and vice versa, the thread on the rod would soon wear or strip, and more over the assembly and disassembly of parts would be expensive.

According to my invention, each bar or rod is provided with or composed of alternately threaded and unthreaded sections, the preferred construction being one in which the unthreaded sections are cylindrical and the diameter of the several sections decreases pro essively, from the inner to the outer end of t e rod to enable the nuts intended for intermediate parts of the rod to readily pass over revious sections.

Re erring to Fig. '1, which illustrates the improved rod arrangement just outlined, z is the innermost unthreaded cylindrical section of the greatest diametensucceeding whichis the ofl'set threaded part or section 76 of next smaller diameter, then follows. another oifset unthre'aded section Z of smaller diameter than it and this arrangement continues throughout the length of the rod. The usual s acers f are interposed between certain ol 1: e adjacent plates 6 and nuts m engagin the threads 70' serve the double function 0 spacers and securing means for certain of the other plates. At the outer end of the red are p the nuts 9 and it.

In Fig. 2 l have shown a somewhat modified form wherein each rod comprises alternate threaded and unthreaded areas, but the middle portion of the rod is provided with c as in Fig. 1, engages directly with a suitable I thread in the disc 6 carried by the shaft a. Obviously, the threaded part at must be of greater diameter than the adjacent innermost unthreaded sections 7' of the rod. At one side of the thread is a collar or shoulder 0 and at the other a nut p by which means the rod is securely held in position on the disc 15.

By the construction ofFig. 2, in which the collar 0 and nut 10 project beyond the. plane of the contiguous surfaces of the disc 6, the

advantage 'is obtained-that between .theinlate adgacent said nut from the opposite nermost plate and the disc b a space is formed ace oft edisc.

which maybeused for washin purposes. If testimony whereof I have aflixed my the innermost plate e were to ie against the signature. (H806, and if there were any inequalities in T MAX AURIG.

the plate at the area of contact with the disc, in ace between the two mi ht form into WhlCh washing tar could find 1ts way. Durin cessation of operation this tar would sofidify and cause knocking of the-rotor; By 4 initially providin a space between the innermost plate an the disc, uniform action of the materials in this part of the machine is assured and deposit and incrustation of tar 15 or other substances prevented.

I claim: 1. An apparatus for the purpose specified, comprising a bag adapted to be rotated in a casing, sa1d ba having alternate threaded 7 go and unthreaded surfaces, plates spaced from 5 each other and mounted on said bar and means engaging the threaded surfaces for retaining the plates in position on the bar,

2. An apparatus for the purpose specified,

i 25 comprising abar adapted to be rotated in a Q casing, sa1d bar having alternate cylindrical unthreaded and threaded portions of different diameters, s aced plates on said bar and meansengageab e with the threaded portions 80 thereof to retain the plates in position. v

3; An apparatus for the purpose specified, comprisin .a bar adapted to be rotated in a casing sai bar having alternate cylindrical unthreaded and threaded: portions of progres- $5 sively decreasing diameter from the interior of the casing .outwardlyplates carried by the bar, s acers between the plates on the unthrea ed portions of the bar andnuts between the plates on the threaded portions of the 40 bar and engageable with said threaded por-' 10stions. r v I .4. An apparatus for the purpose specified, comprising a disc rotatable in a casing, a bar limp an intermediate thread traversing 45 said 1sc,"a series of platesspaced from one another and secured on said bar and means at opposite sides of said thread to secure the bar to the disc and to hold the plates next adjacent to the disc spaced from said disc.

to. 5. An apparatus for thepurpose specified,

comprising a disc rotatable in a casing, a bar havin an intermediate thread traversing said isc, said bar also having alternate unthreaded and threaded portions progressively 55 decreasing in diameter from the interior of the casing outwardly in both directions,

plates carried by the bar, spacers between the plates on the unthreaded portions of the bar, nuts between the lates on the threaded portions of the bar an engageable with said i threaded portions, a collar at one end of the intermediate thread and adapted to space the plate ad acent thereto away from one face of the disc and a nut at the other end of the 05 intermediate thread and adapted to space the 13) 

